Finding the Fourth Proportional to 1,031,398.47, 1,423,258.61 and 572,476.97
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Solution
The fourth proportional to 1,031,398.47, 1,423,258.61 and 572,476.97 is: 789,978.65
Step by Step Solution
- Step 1: Write the proportion equation
1,031,398.47 : 1,423,258.61 = 572,476.97 : x - Step 2: Convert to fraction form
1,031,398.47/1,423,258.61 = 572,476.97/x - Step 3: Cross multiply
1,031,398.47x = 1,423,258.61 × 572,476.97 - Step 4: Simplify right side
1,031,398.47x = 814,782,766,600.53 - Step 5: Solve for x
x = 814,782,766,600.53/1,031,398.47 - Step 6: Final answer
x = 789,978.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.